American Idol alumni Kat Luna and Alex Garrido have tied the knot at a wedding ceremony in Tennessee Daily MailAmerican Idol's Kat and Alex Get Married | PEOPLE.com PEOPLE.comAmerican Idol 's Kat and Alex Tie the Knot in Intimate 'Dream' Wedding — See the Photos! Yahoo EntertainmentAmerican Idol's Kat Luna and Alex Garrido Are Married E!